Vol 12, No 2 (2008) > Articles >

Hydrogen Absorption in Weldments of Overlaid Claded Pressure Vessel

Ronnie Rusli 1


  1. Graduate Program of Engineering, University of IndonesiaVisiting Research Scientist Pressure Vessels Division, Sumittomo Steel Industries, Ltd., Japan



Cracks was found in type 347 stainless steel internal attachment welds of a reactor for a high temperature, and high
pressure hydrogen service. One of the possible causes of cracking is low cycle fatigue cracking induced by repetition of
thermal stress to embrittled weld metal. Type 347 weld metal loses its ductility by presence of sigma phase and

Keywords: desulfurization, hydrogen embrittlement, hydrocracking, martensitic, weldment
Published at: Vol 12, No 2 (2008) pages: 70-74

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